Before you start anything new, it is often necessary to stop doing something else. Unless you do that, you will soon hit the final frontier: There are only 24 hours in a day, and you can’t make use of them all. At least not productively.
Eliminate what? Distraction, Waste, Rework, Nuisance, Trouble, Administration, Movement. Well, you’ve got the picture. Eliminate something that does not add value to your life. And yes, sleep has a great value, so don’t plan to skip on that.
Peter Drucker suggests to plan on a regular basis a “Planned Abandonment Session” during which you systematically assess what you do and see what you can stop.
This concept of eliminating something, preferably some kind of waste is also linked to the Lean methodology.
So my advise is start your planned abandonment session ASAP.